describe('singleMarkerMode option', function () {
    /////////////////////////////
    // SETUP FOR EACH TEST
    /////////////////////////////
    var div, map, group, defaultIcon, clusterIcon, marker;

    beforeEach(function () {
        div = document.createElement('div');
        div.style.width = '200px';
        div.style.height = '200px';
        document.body.appendChild(div);

        map = L.map(div, {maxZoom: 18, trackResize: false});

        // Corresponds to zoom level 8 for the above div dimensions.
        map.fitBounds(new L.LatLngBounds([
            [1, 1],
            [2, 2]
        ]));

        defaultIcon = new L.Icon.Default();
        clusterIcon = new L.Icon.Default();
        marker = L.marker([1.5, 1.5]);
        marker.setIcon(defaultIcon);
    });

    afterEach(function () {
        if (group instanceof L.MarkerClusterGroup) {
            group.removeLayers(group.getLayers());
            map.removeLayer(group);
        }

        map.remove();
        div.remove();

        div = map = group = defaultIcon = clusterIcon = marker = null
    });

    /////////////////////////////
    // TESTS
    /////////////////////////////
    it('overrides marker icons when set to true', function () {

        group = L.markerClusterGroup({
            singleMarkerMode: true,
            iconCreateFunction: function (layer) {
                return clusterIcon;
            }
        }).addTo(map);

        expect(marker.options.icon).to.equal(defaultIcon);

        marker.addTo(group);

        expect(marker.options.icon).to.equal(clusterIcon);

    });

    it('does not modify marker icons by default (or set to false)', function () {

        group = L.markerClusterGroup({
            iconCreateFunction: function (layer) {
                return clusterIcon;
            }
        }).addTo(map);

        expect(marker.options.icon).to.equal(defaultIcon);

        marker.addTo(group);

        expect(marker.options.icon).to.equal(defaultIcon);

    });
});
